Tapered roller bearing

Abstract

The invention relates to a tapered roller bearing comprising at least one conical outer roller track, at least one conical inner roller track and tapered rollers which are arranged in a radial manner between the roller tracks and about the longitudinal central axis of the tapered roller bearing. The tapered rollers respectively comprise a conical first covering surface for carrying out an effective radial connection towards the outside in the rolling contact with the inner roller track and for carrying out an effective radial connection towards the inside in the rolling contact with the outer roller track and the central lines of the tapered rollers intersect in a common intersecting point on the longitudinal central axis.

1 . A tapered roller bearing comprising: at least one conical outer raceway, at least one conical inner raceway and having tapered rollers which are arranged radially between the raceways and about the longitudinal center axis of the tapered roller bearing, the tapered rollers having a conical first circumferential face for an operative connection radially to the outside in rolling contact with the inner raceway and for an operative connection radially to the inside in rolling contact with the outer raceway, and the center lines of the tapered rollers intersecting at a common point of intersection on the longitudinal center axis, and imaginary extensions
 of first generatrices of the first circumferential face of the tapered roller intersecting at a common first vertex which is remote from the longitudinal center axis,   of second generatrices of a second circumferential face of the inner raceway intersecting at a common second vertex on the longitudinal center axis,   of third generatrices of a third circumferential face of the outer raceway intersecting at a common third vertex on the longitudinal center axis,   
     and the second vertex and the third vertex being spaced apart from one another on the longitudinal center axis and enclosing the point of intersection axially between them. 
   
   
       2 . The tapered roller bearing as claimed in  claim 1 , in which the first generatrices enclose a first cone angle between them which is greater than or equal to 1° and less than or equal to 4°, the cone angle being formed between the first generatrices which lie opposite one another in a common sectional plane through the tapered roller bearing which extends along the longitudinal center axis. 
   
   
       3 . The tapered roller bearing as claimed in  claim 1 , in which the second generatrices are inclined at a first inclination angle with respect to the longitudinal center axis, which first inclination angle is greater than or equal to 8° and less than or equal to 25°. 
   
   
       4 . The tapered roller bearing as claimed in  claim 1 , in which the third generatrices and the longitudinal center axis enclose a second inclination angle between them which is greater than or equal to 15° and less than or equal to 16°. 
   
   
       5 . The tapered roller bearing as claimed in  claim 1 , in which at least one of the inner raceways is configured with an annular rim which protrudes radially beyond the inner raceway in the direction of the longitudinal center axis for the axial running on of the tapered rollers, on the inside on an outer ring of the tapered roller bearing, which outer ring surrounds the tapered rollers on the outside. 
   
   
       6 . The tapered roller bearing as claimed in  claim 1 , in which at least one of the outer raceways is formed on the outside on a rimless inner ring of the tapered roller bearing. 
   
   
       7 . The tapered roller bearing as claimed in  claim 8 , in which at least one of the rings is a cold formed part. 
   
   
       8 . A tapered roller for the tapered roller bearing as claimed in  claim 1 , in which first generatrices enclose a first cone angle between them which is greater than 1° and less than 4°, the first generatrices extending in a common sectional plane through the tapered roller which extends along the center line of the roller. 
   
   
       9 . The tapered roller as claimed in  claim 8 , in which the first cone angle is greater than 1° and less than 3°.